{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-28377","assignerOrgId":"57da9224-a3e2-4646-9d0e-c4dc2e05e7da","state":"PUBLISHED","assignerShortName":"GRAFANA","dateReserved":"2026-02-27T07:16:12.218Z","datePublished":"2026-03-26T21:39:46.928Z","dateUpdated":"2026-05-13T19:28:35.388Z"},"containers":{"cna":{"providerMetadata":{"orgId":"57da9224-a3e2-4646-9d0e-c4dc2e05e7da","shortName":"GRAFANA","dateUpdated":"2026-05-13T19:28:35.388Z"},"datePublic":"2026-03-26T21:34:51.017Z","title":"S3 SSE-C Encryption Key Exposed in Plaintext via Config Endpoint (CVE-2025-41118 Pattern)","descriptions":[{"lang":"en","value":"A vulnerability in Grafana Tempo exposes the S3 SSE-C encryption key in plaintext through the /status/config endpoint, potentially allowing unauthorized users to obtain the key used to encrypt trace data stored in S3.\n\nThanks to william_goodfellow for reporting this vulnerability."}],"affected":[{"vendor":"Grafana","product":"Tempo","platforms":["OnPrem"],"defaultStatus":"unaffected","versions":[{"version":"2.10.3","status":"affected","versionType":"semver"}]}],"references":[{"url":"https://grafana.com/security/security-advisories/cve-2026-28377","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"version":"3.1","baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}}],"source":{"discovery":"BUG_BOUNTY"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-326","lang":"en","description":"CWE-326 Inadequate Encryption Strength"}]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-27T13:29:52.402572Z","id":"CVE-2026-28377","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-27T13:54:56.438Z"}}]}}